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Hotel Ruby Blue
★★★★ · Ostrava, Czech Republic
Hotel Ruby Blue in Ostrava scores 7.81/10 on HotelRoost, from a guest rating of 8.4/10 across 1,914 reviews (20 September 2026).
Rooms and what they cost
Where it is
49.8357, 18.2847 · map © OpenFreeMap, data © OpenStreetMap contributors
How this score was reached
| Guest rating as published | 8.4 |
| Reviews behind it | 1,914 |
| Country mean | 9.016 |
| After evidence weighting | 8.416 |
| Country re-basing weight | 0.3 |
| Roost Score | 7.81 |
Before you go to Ostrava
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